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New Features Awaiting Implementation Interest: Difference between revisions

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<tr><th>Mozilla (Firefox) <th>Opera <th>Microsoft (IE) <th>Apple (Safari) <th>Google (Chrome) <th>Others
<tr><th>Mozilla (Firefox) <th>Opera <th>Microsoft (IE) <th>Apple (Safari) <th>Google (Chrome) <th>Others
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<tr>
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Jan/0082.html Progress events on IMG elements]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22682 Some way to add files to <input type=file>]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Jan/0195.html Jonas Sicking]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0153.html Jonas Sicking]
  <td>
  <td>
  <td>
  <td>
<td>[http://lists.webkit.org/pipermail/webkit-dev/2012-January/019182.html Dean Jackson]
  <td>
  <td>
<td> Nico Weber
  <td>
  <td>
  <td>Will likely be added soon
  <td> On track for spec
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  <td>[[AllowSeamless|Cross-origin seamless iframes]]
  <td>[[AllowSeamless|Cross-origin seamless iframes]]
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0006.html Pending input on this thread]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0006.html Pending input on this thread]
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  <td>[https://bugzilla.mozilla.org/show_bug.cgi?id=803124 Canvas: isPointInStroke]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22698 HTMLCanvasElement.printCallback API]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0148.html Jeff Muizelaar]
  <td>Julian Viereck
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  <td>
  <td>
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<td>[https://bugzilla.mozilla.org/show_bug.cgi?id=655926 Canvas: fillRule]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0107.html Metadata API for media elements]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2011Jun/0123.html Chris Jones]
  <td>Ralph Giles
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  <td>
<td>Also needs a spec for the metadata schema
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0371.html HTMLCanvasElement.printCallback API]
<td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22696 Adding defer/async to inline scripts]
<td>Julian Viereck
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0290.html Jonas Sicking]
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  <td>
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  <td>[http://calculist.org/blog/2012/03/29/synchronous-module-loading-in-es6/ Adding defer/async to inline scripts]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22675 &lt;meta name="referrer">]
<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0290.html Jonas Sicking]
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
<td> Adam Barth
  <td>
  <td>
  <td>
  <td>
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  <td>[[Meta_referrer|&lt;meta name="referrer">]]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22699 Location.ancestorOrigins]
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td> Adam Barth
  <td> Already implemented
<td>
  <td>
  <td>
<td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0259.html Negative feedback from Tobie Langel]
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0272.html A method to trigger autofill]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22701 A method to trigger autofill]
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  <td>[http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-March/035065.html Prerendering APIs]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22676 Prerendering APIs]
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  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
<td> Gavin Peters
  <td>
  <td>
<td> [http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/037833.html Gavin Peters]
  <td>
  <td>
<td> Needs detailed specification work to describe what happens with scripts running in the prerender context (since normally scripts can't run in non-active documents, and normally there's only one active document per session history).
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  <td> [http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html &lt;template>] [https://www.w3.org/Bugs/Public/show_bug.cgi?id=17930 (bug)]
  <td> [https://www.w3.org/Bugs/Public/show_bug.cgi?id=22697 APIs for 'palpable' content] (at the bottom)
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td> Rafael Weinstein
  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0082.html Ojan Vofai]
  <td>
  <td>
  <td>
  <td>
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  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Aug/0274.html APIs for 'palpable' content] (at the bottom)
  <td>Appcache: [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0345.html More detail in error events]
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  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
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  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0082.html Ojan Vofai]
  <td> [http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/038185.html Michael Nordman]
  <td>
  <td>
  <td>
  <td>
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0532.html Some way to add files to <input type=file>]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0088.html Making drawImage() have a mode to clamp at source rectangle]
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  <td>
  <td>
  <td>
  <td>
  <td>
<td> Nico Weber
  <td>
  <td>
<td> Justin Novosad
  <td>
  <td>
<td> There is a workaround using ImageBitmaps to extract a subregions of the source image. The workaround does not solve cases where sub-region extraction needs to be synchronous either because the source image content changes over time (e.g a canvas or video), or because the subrectangle coordinates cannot be determined in advance.
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  <td>Appcache: [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0345.html More detail in error events]
  <td>Appcache: [https://www.w3.org/Bugs/Public/show_bug.cgi?id=20083 Interceptor Worker]
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  <td>
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  <td>
  <td>
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<td> [http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/038185.html Michael Nordman]
  <td>
  <td>
  <td>
  <td>
<td> Needs use cases as well
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  <td>[http://whatwg.org/html/#the-menu-element The &lt;menu> feature with many elements providing commands]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22680 FormData]
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0369.html Looking for feedback on new proposal]
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  <td>Appcache: [https://www.w3.org/Bugs/Public/show_bug.cgi?id=20083 Interceptor Worker]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22674 Canvas: Stroke alignment]
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  <td>
  <td>
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  <td>
  <td>
  <td>
<td> Needs use cases as well
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  <td>[[FormData]]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2013Jan/0073.html Canvas: Page flipping for the 2D context]
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  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
  <td>
<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2013Jan/0098.html James Robinson]
  <td>
  <td>
  <td>
  <td>
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2010Jul/0238.html Canvas: Stroke alignment]
  <td>[http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/038079.html Canvas: control over when shadows paint]
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  <td>[http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-November/038079.html Canvas: control over when shadows paint]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0138.html &lt;img srcset>: a mechanism to enable adaptive images]
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  <td>
  <td>
  <td>
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  <td>
<td>[https://bugs.webkit.org/show_bug.cgi?id=110252 Implemented]
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  <td>
  <td>
  <td>
  <td>
  <td>
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  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0138.html img@srcset: a mechanism to enable adaptive images]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=17859 locale=""]
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  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=17859 locale=""]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0238.html <video> currentTime and seek using rational numbers]
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<td>
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0232.html Jer Noble]
  <td>
  <td>
  <td>
  <td>
<td> Would expose the video's timebase, too, assuming it's constant. See also next line.
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<td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=22678 video source material metrics] (e.g. frame rate for fixed-frame-rate video data)
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012May/0001.html video source material metrics] (e.g. frame rate for fixed-frame-rate video data)
  <td>
  <td>
  <td>
  <td>
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<td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0617.html Cross-origin workers]
  <td>
  <td>
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<td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0647.html Travis Leithead?]
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  <td>
<td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0618.html Ojan Vafai]
  <td>
  <td>
  <td>
  <td>
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  <td> [http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Nov/0384.html Exception object as fifth argument to onerror]
  <td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=17842 Deferring &lt;img> loads until the image is needed]
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  <td>
  <td>
<td> zcorpan?
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  <td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0617.html Cross-origin workers]
  <td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Dec/0272.html API to request Web Worker latency guarantees (in exchange for guaranteeing low CPU usage)]
  <td>
  <td>
  <td>
  <td>
<td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0647.html Travis Leithead?]
  <td>
  <td>
<td>[http://lists.w3.org/Archives/Public/public-webapps/2012OctDec/0618.html Ojan Vafai]
  <td>
  <td>
  <td>
  <td>
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<td>[https://www.w3.org/Bugs/Public/show_bug.cgi?id=17842 Deferring <img> loads until the image is needed]
  <td>
  <td>
  <td>
  <td>
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<td>[http://lists.w3.org/Archives/Public/public-whatwg-archive/2010Oct/0024.html SearchBox API]
  <td>
  <td>
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  <td>
<td> Tony Gentilcore
  <td>
  <td>
<td> No longer being tracked.
</table>
</table>



Latest revision as of 23:42, 6 September 2013

There are features that have been requested, but for which we are lacking implementor interest. Without two or more vendors interested in implementing the feature, they are unlikely to get added to the specs.

Feature Interest indicated by... Comments
Mozilla (Firefox) Opera Microsoft (IE) Apple (Safari) Google (Chrome) Others
Some way to add files to <input type=file> Jonas Sicking Nico Weber On track for spec
Cross-origin seamless iframes Boris Zbarsky Adam Barth Pending input on this thread
HTMLCanvasElement.printCallback API Julian Viereck
Metadata API for media elements Ralph Giles Also needs a spec for the metadata schema
Adding defer/async to inline scripts Jonas Sicking
<meta name="referrer"> Adam Barth
Location.ancestorOrigins Already implemented Negative feedback from Tobie Langel
A method to trigger autofill Elliott Sprehn, Peter Kasting
Prerendering APIs Gavin Peters Needs detailed specification work to describe what happens with scripts running in the prerender context (since normally scripts can't run in non-active documents, and normally there's only one active document per session history).
APIs for 'palpable' content (at the bottom) Ojan Vofai
Appcache: More detail in error events Michael Nordman
Making drawImage() have a mode to clamp at source rectangle Justin Novosad There is a workaround using ImageBitmaps to extract a subregions of the source image. The workaround does not solve cases where sub-region extraction needs to be synchronous either because the source image content changes over time (e.g a canvas or video), or because the subrectangle coordinates cannot be determined in advance.
Appcache: Interceptor Worker Needs use cases as well
FormData
Canvas: Stroke alignment
Canvas: Page flipping for the 2D context James Robinson
Canvas: control over when shadows paint
<img srcset>: a mechanism to enable adaptive images Implemented
locale=""
<video> currentTime and seek using rational numbers Jer Noble Would expose the video's timebase, too, assuming it's constant. See also next line.
video source material metrics (e.g. frame rate for fixed-frame-rate video data)
Cross-origin workers Travis Leithead? Ojan Vafai
Deferring <img> loads until the image is needed
API to request Web Worker latency guarantees (in exchange for guaranteeing low CPU usage)
SearchBox API Tony Gentilcore No longer being tracked.

See also: Who to ask about stuff